孤岛综放面采空区自燃“三带”实测与数值模拟

The isolated island full mechanized caving face coal spontaneous combustion empty zone “three zones”of measurement and numerical simulation

根据国阳二矿80509孤岛综放工作面的地质条件,通过现场实测与数值模拟,探究采空区自燃"三带"分布,掌握采空区煤自燃的情况,及时发现采空区遗煤自燃发火的危险,分析采空区遗煤自燃的3个特征(采空区漏风强度、氧气浓度和温度)及采空区自然发火的危险性,为制定防灭火技术措施提供准确的数据支持和理论依据.

According to the caving working face of geological conditions at the 80509 isolated island of Guoyang 2nd mine, through field measurement and numerical simulation of goaf, this paper explores the ＂three zones＂ distribution, grasps the goal coal spontaneous combustion situation, timely detects goal coal spontaneous combustion risk, and analyzes the 3 characteristics of spontaneous combustion of residual coal in goal （goal air leakage intensity, oxygen concentration and temperature ） risk and the goal spontaneous combustion. It provides accurate data support and theoretical basis for the measures of the prevention and the control.